#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main()
{
	int a = 0;
	int b = 0;
	int c = 0;
	int d = 0;
	scanf("%d %d %d %d", &a, &b, &c, &d);
	int num = 0;
	num = a + b + (c * 2) + (d * 3);
	printf("%d", num);
	return 0;
}